US4640166A - Turret punch press - Google Patents

Turret punch press Download PDF

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Publication number
US4640166A
US4640166A US06/792,022 US79202285A US4640166A US 4640166 A US4640166 A US 4640166A US 79202285 A US79202285 A US 79202285A US 4640166 A US4640166 A US 4640166A
Authority
US
United States
Prior art keywords
turret
turrets
gear
drive means
drive system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/792,022
Other languages
English (en)
Inventor
Masayoshi Mizukado
Akio Morishita
Yoshihiro Muto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamazaki Mazak Corp
Original Assignee
Yamazaki Machinery Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamazaki Machinery Works Ltd filed Critical Yamazaki Machinery Works Ltd
Assigned to YAMAZAKI MACHINERY WORKS, LTD., 1 AZANORIFUNE, OOAZAOGUCHI, OOGUCHI-CHO, NIWA-GUN, AICHI-KEN, JAPAN reassignment YAMAZAKI MACHINERY WORKS, LTD., 1 AZANORIFUNE, OOAZAOGUCHI, OOGUCHI-CHO, NIWA-GUN, AICHI-KEN, JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MIZUKADO, MASAYOSHI, MORISHITA, AKIO, MUTO, YOSHIHIRO
Application granted granted Critical
Publication of US4640166A publication Critical patent/US4640166A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y10T83/173—Arithmetically determined program
    • Y10T83/175—With condition sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y10T83/8732—Turret of tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8742—Tool pair positionable as a unit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8867—With means to adjust tool position on tool holder

Definitions

  • This invention relates to a turret punch press having a rotatable metallic mold in a turret.
  • the present invention comprises a first drive means provided to an upper turret and a lower turret in such a manner as that the upper turret and lower turret can be synchronously rotated through a turret drive system, a second drive means provided to an upper metallic mold and a lower metallic mold in such a manner as that the upper and the lower metallic molds can be synchronously rotated within the respective turrets through a metallic mold drive system, the metallic mold drive system being connected to the turret drive system through a differential gear mechanism, change gear ratios of both the drive systems and the differential gear mechanism being set as such that the metallic molds can be driven by the first drive means within the respective rotatable turrets without changing a dividing angular position thereof while the second drive means being held stopped.
  • the present invention functions as follow.
  • the metallic molds are driven to rotate within the respective turrets by the first drive means through the differential gear mechanism by holding the second drive means stopped, while maintaining their own dividing angles.
  • the dividing of angles of the respective metallic molds is effected by rotating the second drive means through the differential gear mechanism, with the turrets positioned and stopped.
  • FIG. 1 is a drive system diagram showing one example of drive system of turrets and metallic molds of a turret punch press according to the present invention
  • FIG. 2 is a front view showing one example of a turret punch press to which the present invention is applied.
  • FIG. 3 is a plan view showing one example of a planetary gear apparatus.
  • a turret punch press 1 has a machine body 2 as shown in FIG. 2. Disposed at the right portion of the machine body 2 in the figure is a table 3. Further, disposed at the right portion of the table 3 of the machine body 2 is a positioning apparatus 4 adapted to position a workpiece with respect to its vertical direction to a paper surface. Disposed at a further right portion of the positioning apparatus 4 and on the machine body 2 is another positioning apparatus 5 adapted to position a workpiece with respect to the directions as shown by two headed arrows A and B. At a left part of the machine body 2, an upper machine body 2a is formed in such a manner as to hang thereover.
  • the upper machine body 2a is rotatably provided through a shaft 6a with an upper turret 6 formed in a disc shape. Further, at a location opposite to the upper turret 6 of the machine body 2, there is rotatably provided through a shaft 7a with a lower turret 7 formed in a disc shape.
  • the shafts 6a and 7a of the upper and lower turrets 6 and 7 are formed with driving gears 6b and 7b respectively, as shown in FIG. 1.
  • the respective driving gears 6b and 7b are meshed with gears 9, 9 which constitute a turret drive system TDU.
  • the gears 9, 9 are provided with sprockets 10, 10 through shafts 11, 11.
  • Connected to the sprockets 10, 10 are sprockets 13, 13 mounted on a shaft 15 through chains 12, 12 serving as power transmission means.
  • the shaft 15 is connected to a drive motor 16.
  • Disposed on the drive motor 16 is a transducer 17 adapted to detect rotation angle of the drive motor 16.
  • the driving gear 7b is meshed with a gear 19 which constitutes a differential gear mechanism 28.
  • the gear 19 is provided with a sprocket 21 through a shaft 20.
  • the sprocket 21 is provided with a sprocket 23 through a chain 22.
  • Meshed with the sprocket 23 through a shaft 25 is a gear 26 which is connected to a planetary gear apparatus 27.
  • the planetary gear apparatus 27 rotatably supports an outer gear 29a meshed with the gear 26, as shown in FIG. 3.
  • the outer gear 29a is formed on a member 29, and at an internal side of the member 29, an inner gear 29b is formed.
  • the inner gear 29b is meshed with a sun gear 31 through a planetary gear 30.
  • an arm 32 is disposed in such a manner as to be relatively rotatable through shafts 30a and 31a.
  • a drive motor 33 Connected to the sun gear 31 is a drive motor 33 with a braking function built therein, as shown in FIG. 1.
  • a shaft 35 Connected to the arm 32 is a shaft 35 which constitutes a metallic mold drive system CDU.
  • the shaft 35 is mounted with sprockets 36, 36.
  • Connected to the sprockets 36, 36 through chains 37, 37 are sprockets 39, 39.
  • the sprockets 39, 39 are mounted on shafts 40, 40 which are rotatably supported within the shafts 6a and 7a.
  • the shafts 40, 40 are mounted with sprockets 41, 41.
  • Connected to the sprockets 41, 41 are sprockets 43a and 45a mounted on an upper metallic mold 34 and a lower metallic mold 45 through chains 42, 42.
  • the upper and lower metallic molds 43 and 45 are rotatably supported with respect to the respective upper and lower turrets 6 and 7.
  • position holes 6c and 7c are defined.
  • stopper pins 46, 46 are disposed in such a manner as to projectably drive pins 46a, 46a.
  • the turret punch press 1 When a workpiece is machined by utilizing the turret punch press 1, a workpiece 47 is put on the table 3, and the positioning apparatuses 4 and 5 are driven to move the workpiece 47 in the directions as shown by two headed arrows A and B, and the directions perpendicular thereto so as to bring the workpiece 47 in a predetermined position for striking. Simultaneously, the turrerts 6 and 7 are rotated to divide the metallic molds 43 and 45 in predetermined striking positions. Furthermore, after the metallic molds 43 and 45 are divided in predetermined machining angles, the workpiece 47 is punched. This operation is performed as follows. Firstly, as shown in FIG.
  • the brake function of the drive motor 33 is actuated to hold the rotation of the sun gear 31 restricted. Then the drive motor 16 is driven for rotation. The rotation of the drive motor 16 causes the sprockets 13, 13 to rotate through the shaft 15. It further rotates the chains 12, 12, and sprockets 10, 10. It still further rotates the shafts 11, 11 together with the gears 9, 9.
  • the upper and lower turrets 6 and 7 are synchronically rotated about the shafts 6a and 7a through the drive gears 6b and 7b by same angles in the same direction [gear ration (change gear ratio)] of sprockets 13 and 10, and gear 9 and drive gears 6b and 7b is such that the upper turret 6 and the lower turret 7 are permitted to synchronically rotated) to bring metallic molds to be used for machining, i.e., the upper metallic mold 43 and the lower metallic mold 45, to the predetermined striking positions.
  • the pin 46a of each of the stopper pins 46, 46 is caused to project toward the turret to insert the pin 6a into the position holes 6c and 7c.
  • the upper and lower turrets 6 and 7 are restricted to rotate about the shafts 6a and 7a due to the insertion of the pin 46a into the position holes 6c and 7c, and firmly secured with respect to the machine body 2.
  • the rotation angle of the drive motor 16 is detected and controlled by the transducer 17. Accordingly, the respective turrets 6 and 7 can be smoothly positioned in the predetermined positions by controlling the rotation angle of the drive motor 16.
  • the planetary gear 30 rotates around the sun gear 31 which stopped rotation, and the arm 32 is also rotated together with the rotation of the planetary gear 30 (at this time, the directions of rotation of the planetary gear 30 and the arm 32 are same as the direction of rotation of the inner gear 29b). Since the arm 32 is connected with the shaft 35, the shaft 35 is rotated in synchronism with the rotation of the arm 32 to cause the sprockets 43a and 45a of the upper and lower metallic molds 43 and 45 to rotate through the sprocket 36, the chain 37, and the sprocket 39, and further through the shaft 40, the sprocket 41, and the chain 42.
  • the upper and the lower metallic molds 43 and 45 are synchronously rotated within the respective upper and lower turrets 6 and 7.
  • the respective turrets 6 and 7 are rotated about the shafts 6a and 7a by 360°
  • the respective metallic molds 43 and 45 are also rotated by 360° in the same direction of the turrets 6 and 7 within the turrets 6 and 7.
  • the respective turrets 6 and 7 are held stopped by a stopper pin 46 to perform the positioning of the upper and the lower metallic molds 43 and 45. Then, the drive motor 33 is released from its being held stopped and rotated by a predetermined angle of rotation. When the drive motor 33 is rotated, the arm 32 is also rotated through the sun gear 31 and the planetary gear 30, and the shaft 35 is also rotated.
  • the inner and the outer gears 29b and 29a are not rotated, since the lower turret 7 is restricted its rotation by the stopper pin 46 to cause the inner and the outer gears 29b and 29a to be held and stopped (at this time, the direction of rotation of the arm 32 is same as the direction of rotation of the sun gear 31, and the direction of rotation of the planetary gear 30 is the other way of the direction of rotation of the sun gear 31).
  • the shaft 35 is rotated due to the rotation of the sun gear 31, and the respective metallic molds 43 and 45 are synchronously rotated by predetermined angles as in the same manner as described.
  • the dividing operation of predetermined machining angle of the respective metallic molds 43 and 45 is correctly carried out by controlling the angle of rotation of the drive motor 33.
  • the outer gears 29a and the inner gears 29b are not rotated, the angles of rotation of the respective metallic molds 43 and 45 are subjected to the angle of rotation of the drive motor 45.
  • the angle dividing of the respective metallic molds 43 and 45 is carried out smoothly (as a matter of course, the change gear ratio of the metallic drive system CDU is set so as to permit the metallic molds 43 and 45 to rotate synchronously).
  • a striker (not shown) is actuated to cause the upper metallic mold 43 to strike the lower metallic mold 45 in order to punch the workpiece 47 held between the upper and the lower metallic molds 43 and 45.
  • the upper and the lower turret 6 and 7 are rotated by the drive motor 16 to position metallic molds to be used for the next punching process in a predetermined striking position, and the machining is continued in the same way as described.
  • the metallic molds 43 and 45 with the predetermined angles divided within the turrets 6 and 7 are held with the dividing angles. Accordingly, at the time when metallic molds 43 and 45 are positioned in the striking positions for the next machining, these metallic molds are no more required to effect positioning, and positioned in the predetermined dividing angle position which was already divided.
  • the metallic molds 43 and 45 can be positioned in correct positions merely by controlling the rotation of the metallic molds by the drive motor 33 based on the present dividing angles of the metallic molds 43 and 45 after the turrets 6 and 7 are held stationary.
  • the planetary gear apparatus 27 is used for the differential gear mechanism 28 adapted to connect the turret drive system TDU with the metallic mold drive system CDU.
  • the differential gear mechanism 28 is not limited to the planetary gear apparatus 27. Alternatively, it may be formed of a combination of bevel gears.
  • a turret punch press comprises a first drive means such as drive motor 16 provided to upper turret 6 and lower turret 7 in such a manner as that the upper and lower turrets 6 and 7 can be synchronously rotated through turret drive system TDU such as gear 9, chain 12, sprockets 10 and 13, a second drive means such as drive motor 33 provided to upper metallic mold 43 and lower metallic mold 45 in such a manner as that the upper and the lower metallic molds 43 and 45 can be synchronously rotated within the respective turrets 6 and 7 through a metallic mold drive system CDU such as sprockets 36, 39, 41, 43a, and 45a, and chain 37 and 42, the metallic mold drive system CDU being connected to the turret drive system TDU through a differential gear mechanism 28, change gear ratios of both the drive systems and the differential gear mechanism 28 being set as such that the metallic molds 43 and 45 can be driven by the first drive means within the respective
  • the respective metallic molds 43 and 45 within the respective turrets 6 and 9 are held within the turrets 6 and 9 with the angle divided by the second drive means remained as it is, and therefore, no additional device such as a special brake mechanism for holding the metallic molds with respect to the turrets is required.
  • a simple structure of the turret can be obtained.
  • the upper and lower metallic molds 43 and 45 within the upper and lower turrets 7 and 8 are always connected to the metallic mold drive system CDU, no clutch mechanism is required to provide to the drive system between the drive motor 33 and the metallic molds 43 and 45.
  • the metallic molds 43 and 45 to be used for the machining can be immediately subjected to the positioning operation after the positioning thereof is effected by rotating the turrets 6 and 7. Accordingly, no nuisance intermittent operation of clutch is required at all. Thus, waste of time is lessened to that extent. As a result, the number of the striking per unit time can be increased. Moreover, the punch press 1 can be made more simple in its structure and smaller in its size to that extent.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
US06/792,022 1984-10-29 1985-10-28 Turret punch press Expired - Fee Related US4640166A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59-227517 1984-10-29
JP59227517A JPS61108433A (ja) 1984-10-29 1984-10-29 タレツトパンチプレス

Publications (1)

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US4640166A true US4640166A (en) 1987-02-03

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US06/792,022 Expired - Fee Related US4640166A (en) 1984-10-29 1985-10-28 Turret punch press

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US (1) US4640166A (en])
JP (1) JPS61108433A (en])

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003336A1 (en) * 1989-09-11 1991-03-21 Shape Machines Limited Turret punch press
WO1991003335A1 (en) * 1989-09-11 1991-03-21 Boris Potemkin Turret punch press
WO1998025332A1 (en) * 1996-12-05 1998-06-11 L.H. Carbide Corporation Dual action indexing system for a die assembly
US6530142B2 (en) 1996-12-05 2003-03-11 L. H. Carbide Corporation Dual action indexing system and method for a die assembly
US20030221525A1 (en) * 2002-05-31 2003-12-04 Koichiro Katoh Tool holder for turret lathe
US20040003690A1 (en) * 2002-06-28 2004-01-08 Koichiro Katoh Turret for turret lathe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0539773Y2 (en]) * 1988-05-12 1993-10-08

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55141337A (en) * 1979-11-28 1980-11-05 Anritsu Corp Die holding device of punch press machine
US4343210A (en) * 1979-05-31 1982-08-10 Anritsu Electric Co Ltd Punch press
US4412469A (en) * 1980-03-18 1983-11-01 Amada Company, Ltd. Turret punch presses having tool holders rotatably mounted in the turrets
US4532845A (en) * 1981-10-20 1985-08-06 Amada Company, Limited Turret punch presses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4343210A (en) * 1979-05-31 1982-08-10 Anritsu Electric Co Ltd Punch press
JPS55141337A (en) * 1979-11-28 1980-11-05 Anritsu Corp Die holding device of punch press machine
US4412469A (en) * 1980-03-18 1983-11-01 Amada Company, Ltd. Turret punch presses having tool holders rotatably mounted in the turrets
US4532845A (en) * 1981-10-20 1985-08-06 Amada Company, Limited Turret punch presses

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003336A1 (en) * 1989-09-11 1991-03-21 Shape Machines Limited Turret punch press
WO1991003335A1 (en) * 1989-09-11 1991-03-21 Boris Potemkin Turret punch press
WO1998025332A1 (en) * 1996-12-05 1998-06-11 L.H. Carbide Corporation Dual action indexing system for a die assembly
US5881450A (en) * 1996-12-05 1999-03-16 L.H. Carbide Corporation Dual action indexing system and method for a die assembly
US6192575B1 (en) 1996-12-05 2001-02-27 L. H. Carbide Corporation Dual action indexing system and method for a die assembly
US6530142B2 (en) 1996-12-05 2003-03-11 L. H. Carbide Corporation Dual action indexing system and method for a die assembly
US20030221525A1 (en) * 2002-05-31 2003-12-04 Koichiro Katoh Tool holder for turret lathe
US6865789B2 (en) 2002-05-31 2005-03-15 Yamazaki Mazak Kabushiki Kaisha Tool holder for turret lathe
US20040003690A1 (en) * 2002-06-28 2004-01-08 Koichiro Katoh Turret for turret lathe
US7117773B2 (en) 2002-06-28 2006-10-10 Yamazaki Mazak Kabushiki Kaisha Turret for turret lathe

Also Published As

Publication number Publication date
JPS61108433A (ja) 1986-05-27
JPH0478367B2 (en]) 1992-12-11

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Owner name: YAMAZAKI MACHINERY WORKS, LTD., 1 AZANORIFUNE, OOA

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